Hotsy 1.109-037.0, Руководство оператора

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19
Maintenance
Pump Motor
On a yearly basis, oil pump motor per instructions on
motor nameplate.
NOTE: Some motors may be equipped with perma-
nently lubricated bearings and will not require addi-
tional lubrication.
Gas Burner
It is recommended that the gas burner be serviced
yearly or as needed. Contact your local service center.
Pressure Relief Valve
Each machine is equipped with a relief valve to relieve
pressure in the system when higher than normal
operating pressures are encountered or if the unloader
valve should fail. Unusually high pressures come from
an object plugging the spray nozzle. If operating
pressure is found to be normal and the relief valve
continues to leak, repair or replace valve. The Safety
Relief Valve should be opened to release any sediment
yearly. Start the pressure washer and use an Allen
wrench to turn the pressure relief valve counter
clockwise until water is pouring out the valve. Then turn
the adjustment nut/bolt until the valve stops leaking.
Open and close the trigger gun and if water squirts out
the valve when you close the trigger gun turn clockwise
one full turn until there is no leaking when the trigger
gun is closed.
Unloader Valve
WARNING: The unloader valve on this pressure
washer has been factory set and sealed and is a
field nonadjustable part. Tampering with the
factory setting may cause personal injury and/or
property damage, and will void the manufacturer
warranty. For replacement refer to parts section
UU1 Unloader Valve.
Heating Coil
Coil Descaling: In hard water areas, scale buildup
within the heating coil will occur. Scale deposits will
decrease the water temperature rise and may eventu-
ally clog the heating coil. Contact your local service
center when descaling is needed.
Coil Desooting : Poor grades of fuel or inadequate
combustion air will cause heavy soot buildup on the
outside surface of the heating coil. These deposits will
insulate the coil. This will restrict the air flow through
the coil, further aggravating the soot buildup. Contact
your local service center when desooting is needed.
Hotsy 771 / 772 8.941-246.0 - Y